A traffic nightmare continues near downtown Dallas. Chopper 11 flew over westbound Interstate-35E when an mid-afternoon accident involving a tractor-trailer and heavy equipment vehicle closed all of the southbound lanes.

Carrollton police are asking for help identifying and locating the person who struck and killed a pedestrian on the I-35E frontage road. The suspect vehicle is believed to be a silver or gray-colored 2006 Honda Civic, with body damage.